1407072740 has 24 divisors (see below), whose sum is σ = 3110372160. Its totient is φ = 533206368.

The previous prime is 1407072707. The next prime is 1407072757. The reversal of 1407072740 is 472707041.

It is a super-2 number, since 2×1407072740² = 3959707391302215200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1407072697 and 1407072706.

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, 1851032 + ... + 1851791.

It is an arithmetic number, because the mean of its divisors is an integer number (129598840).

Almost surely, 2^1407072740 is an apocalyptic number.

1407072740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1407072740 is an abundant number, since it is smaller than the sum of its proper divisors (1703299420).

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

1407072740 is a wasteful number, since it uses less digits than its factorization.

1407072740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3702851 (or 3702849 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 32.

The square root of 1407072740 is about 37510.9682626295. The cubic root of 1407072740 is about 1120.5696347655.

Adding to 1407072740 its reverse (472707041), we get a palindrome (1879779781).

The spelling of 1407072740 in words is "one billion, four hundred seven million, seventy-two thousand, seven hundred forty".