712430040 has 64 divisors (see below), whose sum is σ = 2442620160. Its totient is φ = 162840960.

The previous prime is 712430009. The next prime is 712430057. The reversal of 712430040 is 40034217.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 712429989 and 712430016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423226 + ... + 424905.

It is an arithmetic number, because the mean of its divisors is an integer number (38165940).

Almost surely, 2^712430040 is an apocalyptic number.

712430040 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

712430040 is an abundant number, since it is smaller than the sum of its proper divisors (1730190120).

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

712430040 is a wasteful number, since it uses less digits than its factorization.

712430040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848152 (or 848148 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 712430040 is about 26691.3851270405. The cubic root of 712430040 is about 893.1287599927.

Adding to 712430040 its reverse (40034217), we get a palindrome (752464257).

The spelling of 712430040 in words is "seven hundred twelve million, four hundred thirty thousand, forty".