40151870 has 16 divisors (see below), whose sum is σ = 78843888. Its totient is φ = 14600640.

The previous prime is 40151861. The next prime is 40151873. The reversal of 40151870 is 7815104.

It is a super-2 number, since 2×40151870² = 3224345328993800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40151873) 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, 182399 + ... + 182618.

It is an arithmetic number, because the mean of its divisors is an integer number (4927743).

Almost surely, 2^40151870 is an apocalyptic number.

40151870 is a deficient number, since it is larger than the sum of its proper divisors (38692018).

40151870 is a wasteful number, since it uses less digits than its factorization.

40151870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365035.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 40151870 is about 6336.5503233226. The cubic root of 40151870 is about 342.4274661255.

Adding to 40151870 its reverse (7815104), we get a palindrome (47966974).

It can be divided in two parts, 4015 and 1870, that added together give a palindrome (5885).

The spelling of 40151870 in words is "forty million, one hundred fifty-one thousand, eight hundred seventy".