40602690 has 96 divisors (see below), whose sum is σ = 110438640. Its totient is φ = 10340352.

The previous prime is 40602643. The next prime is 40602691. The reversal of 40602690 is 9620604.

It can be written as a sum of positive squares in 8 ways, for example, as 21706281 + 18896409 = 4659^2 + 4347^2 .

It is a super-2 number, since 2×40602690² = 3297156870472200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40602691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 296302 + ... + 296438.

Almost surely, 2^40602690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40602690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55219320).

40602690 is an abundant number, since it is smaller than the sum of its proper divisors (69835950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40602690 is a wasteful number, since it uses less digits than its factorization.

40602690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 40602690 is about 6372.0240112542. The cubic root of 40602690 is about 343.7042764528.

The spelling of 40602690 in words is "forty million, six hundred two thousand, six hundred ninety".