40905190 has 8 divisors (see below), whose sum is σ = 73629360. Its totient is φ = 16362072.

The previous prime is 40905187. The next prime is 40905199. The reversal of 40905190 is 9150904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40905190² = 3346469137872200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40905199) 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, 2045250 + ... + 2045269.

It is an arithmetic number, because the mean of its divisors is an integer number (9203670).

Almost surely, 2^40905190 is an apocalyptic number.

40905190 is a deficient number, since it is larger than the sum of its proper divisors (32724170).

40905190 is a wasteful number, since it uses less digits than its factorization.

40905190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4090526.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 40905190 is about 6395.7165353070. The cubic root of 40905190 is about 344.5557258275. Note that the first 3 decimals are identical.

The spelling of 40905190 in words is "forty million, nine hundred five thousand, one hundred ninety".