40446460 has 24 divisors (see below), whose sum is σ = 85782816. Its totient is φ = 16017600.

The previous prime is 40446449. The next prime is 40446467. The reversal of 40446460 is 6464404.

It is a super-2 number, since 2×40446460² = 3271832253063200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40446467) 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, 7992 + ... + 12031.

It is an arithmetic number, because the mean of its divisors is an integer number (3574284).

Almost surely, 2^40446460 is an apocalyptic number.

It is an amenable number.

40446460 is an abundant number, since it is smaller than the sum of its proper divisors (45336356).

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

40446460 is a wasteful number, since it uses less digits than its factorization.

40446460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20133 (or 20131 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 40446460 is about 6359.7531398632. The cubic root of 40446460 is about 343.2628776364.

It can be divided in two parts, 404 and 46460, that added together give a palindrome (46864).

The spelling of 40446460 in words is "forty million, four hundred forty-six thousand, four hundred sixty".