42097692 has 96 divisors (see below), whose sum is σ = 127321600. Its totient is φ = 10513152.

The previous prime is 42097691. The next prime is 42097697. The reversal of 42097692 is 29679024.

It is a hoax number, since the sum of its digits (39) 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 (39).

It is a self number, because there is not a number n which added to its sum of digits gives 42097692.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42097691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19734 + ... + 21762.

Almost surely, 2^42097692 is an apocalyptic number.

42097692 is a gapful number since it is divisible by the number (42) 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 42097692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63660800).

42097692 is an abundant number, since it is smaller than the sum of its proper divisors (85223908).

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

42097692 is a wasteful number, since it uses less digits than its factorization.

42097692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075 (or 2073 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 42097692 is about 6488.2734221055. The cubic root of 42097692 is about 347.8719637323.

The spelling of 42097692 in words is "forty-two million, ninety-seven thousand, six hundred ninety-two".