40290948 has 72 divisors (see below), whose sum is σ = 106695680. Its totient is φ = 12804480.

The previous prime is 40290937. The next prime is 40290953. The reversal of 40290948 is 84909204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 87936 + ... + 88392.

Almost surely, 2^40290948 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40290948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53347840).

40290948 is an abundant number, since it is smaller than the sum of its proper divisors (66404732).

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

40290948 is a wasteful number, since it uses less digits than its factorization.

40290948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 40290948 is about 6347.5151043538. The cubic root of 40290948 is about 342.8223771296.

The spelling of 40290948 in words is "forty million, two hundred ninety thousand, nine hundred forty-eight".