40404370 has 16 divisors (see below), whose sum is σ = 74694168. Its totient is φ = 15724800.

The previous prime is 40404367. The next prime is 40404383. The reversal of 40404370 is 7340404.

It can be written as a sum of positive squares in 4 ways, for example, as 40335201 + 69169 = 6351^2 + 263^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54231 + ... + 54970.

Almost surely, 2^40404370 is an apocalyptic number.

40404370 is a deficient number, since it is larger than the sum of its proper divisors (34289798).

40404370 is a wasteful number, since it uses less digits than its factorization.

40404370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109245.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 40404370 is about 6356.4431878213. The cubic root of 40404370 is about 343.1437658601.

Adding to 40404370 its reverse (7340404), we get a palindrome (47744774).

The spelling of 40404370 in words is "forty million, four hundred four thousand, three hundred seventy".