407745140 has 24 divisors (see below), whose sum is σ = 934107552. Its totient is φ = 148270880.

The previous prime is 407745131. The next prime is 407745157. The reversal of 407745140 is 41547704.

It is a junction number, because it is equal to n+sod(n) for n = 407745097 and 407745106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926474 + ... + 926913.

It is an arithmetic number, because the mean of its divisors is an integer number (38921148).

Almost surely, 2^407745140 is an apocalyptic number.

It is an amenable number.

407745140 is an abundant number, since it is smaller than the sum of its proper divisors (526362412).

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

407745140 is a wasteful number, since it uses less digits than its factorization.

407745140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853407 (or 1853405 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 407745140 is about 20192.7001661492. The cubic root of 407745140 is about 741.5314886125.

It can be divided in two parts, 407 and 745140, that added together give a palindrome (745547).

The spelling of 407745140 in words is "four hundred seven million, seven hundred forty-five thousand, one hundred forty".