40153898 has 8 divisors (see below), whose sum is σ = 63773892. Its totient is φ = 18895936.

The previous prime is 40153891. The next prime is 40153901. The reversal of 40153898 is 89835104.

It can be written as a sum of positive squares in 2 ways, for example, as 39601849 + 552049 = 6293^2 + 743^2 .

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

It is a super-2 number, since 2×40153898² = 3224671049188808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40153891) 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, 590465 + ... + 590532.

Almost surely, 2^40153898 is an apocalyptic number.

40153898 is a deficient number, since it is larger than the sum of its proper divisors (23619994).

40153898 is a wasteful number, since it uses less digits than its factorization.

40153898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181016.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 40153898 is about 6336.7103452817. The cubic root of 40153898 is about 342.4332311638.

The spelling of 40153898 in words is "forty million, one hundred fifty-three thousand, eight hundred ninety-eight".