40372030 has 32 divisors (see below), whose sum is σ = 74317824. Its totient is φ = 15787296.

The previous prime is 40372027. The next prime is 40372037. The reversal of 40372030 is 3027304.

It is a junction number, because it is equal to n+sod(n) for n = 40371989 and 40372007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40372037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105219 + ... + 105601.

It is an arithmetic number, because the mean of its divisors is an integer number (2322432).

Almost surely, 2^40372030 is an apocalyptic number.

40372030 is a deficient number, since it is larger than the sum of its proper divisors (33945794).

40372030 is a wasteful number, since it uses less digits than its factorization.

40372030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 40372030 is about 6353.8988030972. The cubic root of 40372030 is about 343.0521896973.

Adding to 40372030 its reverse (3027304), we get a palindrome (43399334).

The spelling of 40372030 in words is "forty million, three hundred seventy-two thousand, thirty".