40377889 has 8 divisors (see below), whose sum is σ = 42480000. Its totient is φ = 38323152.

The previous prime is 40377877. The next prime is 40377901. The reversal of 40377889 is 98877304.

It is an interprime number because it is at equal distance from previous prime (40377877) and next prime (40377901).

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

It is not a de Polignac number, because 40377889 - 2²⁵ = 6823457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40377809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10089 + ... + 13510.

It is an arithmetic number, because the mean of its divisors is an integer number (5310000).

Almost surely, 2^40377889 is an apocalyptic number.

It is an amenable number.

40377889 is a deficient number, since it is larger than the sum of its proper divisors (2102111).

40377889 is a wasteful number, since it uses less digits than its factorization.

40377889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23687.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 40377889 is about 6354.3598418724. The cubic root of 40377889 is about 343.0687840702.

The spelling of 40377889 in words is "forty million, three hundred seventy-seven thousand, eight hundred eighty-nine".