40377489 has 24 divisors (see below), whose sum is σ = 59326272. Its totient is φ = 24377760.

The previous prime is 40377481. The next prime is 40377517. The reversal of 40377489 is 98477304.

It is not a de Polignac number, because 40377489 - 2³ = 40377481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40377489.

It is not an unprimeable number, because it can be changed into a prime (40377481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24099 + ... + 25719.

It is an arithmetic number, because the mean of its divisors is an integer number (2471928).

Almost surely, 2^40377489 is an apocalyptic number.

It is an amenable number.

40377489 is a deficient number, since it is larger than the sum of its proper divisors (18948783).

40377489 is a wasteful number, since it uses less digits than its factorization.

40377489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685 (or 1666 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 40377489 is about 6354.3283673414. The cubic root of 40377489 is about 343.0676512062.

The spelling of 40377489 in words is "forty million, three hundred seventy-seven thousand, four hundred eighty-nine".