1400722473 has 4 divisors (see below), whose sum is σ = 1867629968. Its totient is φ = 933814980.

The previous prime is 1400722469. The next prime is 1400722493. The reversal of 1400722473 is 3742270041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1400722473 - 2² = 1400722469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1400722473.

It is not an unprimeable number, because it can be changed into a prime (1400722403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233453743 + ... + 233453748.

It is an arithmetic number, because the mean of its divisors is an integer number (466907492).

Almost surely, 2^1400722473 is an apocalyptic number.

It is an amenable number.

1400722473 is a deficient number, since it is larger than the sum of its proper divisors (466907495).

1400722473 is an equidigital number, since it uses as much as digits as its factorization.

1400722473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466907494.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 1400722473 is about 37426.2270740720. The cubic root of 1400722473 is about 1118.8813429308.

The spelling of 1400722473 in words is "one billion, four hundred million, seven hundred twenty-two thousand, four hundred seventy-three".