40462720 has 64 divisors (see below), whose sum is σ = 102448800. Its totient is φ = 15228928.

The previous prime is 40462717. The next prime is 40462729. The reversal of 40462720 is 2726404.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40462729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9021 + ... + 12739.

Almost surely, 2^40462720 is an apocalyptic number.

40462720 is a gapful number since it is divisible by the number (40) 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 40462720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51224400).

40462720 is an abundant number, since it is smaller than the sum of its proper divisors (61986080).

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

40462720 is a wasteful number, since it uses less digits than its factorization.

40462720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755 (or 3743 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 40462720 is about 6361.0313629159. The cubic root of 40462720 is about 343.3088701792.

The spelling of 40462720 in words is "forty million, four hundred sixty-two thousand, seven hundred twenty".