1440746634 has 32 divisors (see below), whose sum is σ = 3183649920. Its totient is φ = 432346112.

The previous prime is 1440746633. The next prime is 1440746653. The reversal of 1440746634 is 4366470441.

It is a junction number, because it is equal to n+sod(n) for n = 1440746592 and 1440746601.

It is not an unprimeable number, because it can be changed into a prime (1440746633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304719 + ... + 309410.

It is an arithmetic number, because the mean of its divisors is an integer number (99489060).

Almost surely, 2^1440746634 is an apocalyptic number.

1440746634 is an abundant number, since it is smaller than the sum of its proper divisors (1742903286).

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

1440746634 is a wasteful number, since it uses less digits than its factorization.

1440746634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614174.

The product of its (nonzero) digits is 193536, while the sum is 39.

The square root of 1440746634 is about 37957.1684138846. The cubic root of 1440746634 is about 1129.4383702395.

The spelling of 1440746634 in words is "one billion, four hundred forty million, seven hundred forty-six thousand, six hundred thirty-four".