40213458 has 12 divisors (see below), whose sum is σ = 87129198. Its totient is φ = 13404480.

The previous prime is 40213447. The next prime is 40213469. The reversal of 40213458 is 85431204.

It is an interprime number because it is at equal distance from previous prime (40213447) and next prime (40213469).

It can be written as a sum of positive squares in only one way, i.e., 25674489 + 14538969 = 5067^2 + 3813^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1117023 + ... + 1117058.

Almost surely, 2^40213458 is an apocalyptic number.

40213458 is an abundant number, since it is smaller than the sum of its proper divisors (46915740).

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

40213458 is a wasteful number, since it uses less digits than its factorization.

40213458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234089 (or 2234086 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 40213458 is about 6341.4082032306. The cubic root of 40213458 is about 342.6024571376.

The spelling of 40213458 in words is "forty million, two hundred thirteen thousand, four hundred fifty-eight".