40401652 has 12 divisors (see below), whose sum is σ = 70775236. Its totient is φ = 20180160.

The previous prime is 40401643. The next prime is 40401659. The reversal of 40401652 is 25610404.

It can be written as a sum of positive squares in 2 ways, for example, as 39891856 + 509796 = 6316^2 + 714^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40401659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249 + ... + 8992.

Almost surely, 2^40401652 is an apocalyptic number.

It is an amenable number.

40401652 is a deficient number, since it is larger than the sum of its proper divisors (30373584).

40401652 is a wasteful number, since it uses less digits than its factorization.

40401652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10338 (or 10336 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 40401652 is about 6356.2293854140. The cubic root of 40401652 is about 343.1360712661.

The spelling of 40401652 in words is "forty million, four hundred one thousand, six hundred fifty-two".