42951744 has 84 divisors (see below), whose sum is σ = 134325360. Its totient is φ = 13013760.

The previous prime is 42951737. The next prime is 42951751. The reversal of 42951744 is 44715924.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42951737) and next prime (42951751).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 42951699 and 42951708.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2947 + ... + 9725.

Almost surely, 2^42951744 is an apocalyptic number.

42951744 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42951744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67162680).

42951744 is an abundant number, since it is smaller than the sum of its proper divisors (91373616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42951744 is a wasteful number, since it uses less digits than its factorization.

42951744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6808 (or 6795 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 42951744 is about 6553.7580059078. The cubic root of 42951744 is about 350.2087027381.

The spelling of 42951744 in words is "forty-two million, nine hundred fifty-one thousand, seven hundred forty-four".