1400720772 has 24 divisors (see below), whose sum is σ = 3565471392. Its totient is φ = 424460800.

The previous prime is 1400720759. The next prime is 1400720773. The reversal of 1400720772 is 2770270041.

It is a super-2 number, since 2×1400720772² = 3924037362224551968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1400720773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5305629 + ... + 5305892.

It is an arithmetic number, because the mean of its divisors is an integer number (148561308).

Almost surely, 2^1400720772 is an apocalyptic number.

1400720772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1400720772 is an abundant number, since it is smaller than the sum of its proper divisors (2164750620).

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

1400720772 is a wasteful number, since it uses less digits than its factorization.

1400720772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10611539 (or 10611537 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 1400720772 is about 37426.2043493593. The cubic root of 1400720772 is about 1118.8808900174.

The spelling of 1400720772 in words is "one billion, four hundred million, seven hundred twenty thousand, seven hundred seventy-two".