40377345 has 32 divisors (see below), whose sum is σ = 67682304. Its totient is φ = 20529600.

The previous prime is 40377341. The next prime is 40377347. The reversal of 40377345 is 54377304.

It is not a de Polignac number, because 40377345 - 2² = 40377341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40377341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32404 + ... + 33626.

It is an arithmetic number, because the mean of its divisors is an integer number (2115072).

Almost surely, 2^40377345 is an apocalyptic number.

40377345 is the 3669-th octagonal number.

It is an amenable number.

40377345 is a deficient number, since it is larger than the sum of its proper divisors (27304959).

40377345 is a wasteful number, since it uses less digits than its factorization.

40377345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333.

The product of its (nonzero) digits is 35280, while the sum is 33.

The square root of 40377345 is about 6354.3170364721. The cubic root of 40377345 is about 343.0672433734.

The spelling of 40377345 in words is "forty million, three hundred seventy-seven thousand, three hundred forty-five".