1440770342 has 16 divisors (see below), whose sum is σ = 2481710400. Its totient is φ = 620427240.

The previous prime is 1440770329. The next prime is 1440770351. The reversal of 1440770342 is 2430770441.

It is a junction number, because it is equal to n+sod(n) for n = 1440770299 and 1440770308.

It is a congruent number.

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, 1722992 + ... + 1723827.

It is an arithmetic number, because the mean of its divisors is an integer number (155106900).

Almost surely, 2^1440770342 is an apocalyptic number.

1440770342 is a deficient number, since it is larger than the sum of its proper divisors (1040940058).

1440770342 is a wasteful number, since it uses less digits than its factorization.

1440770342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3446851.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 1440770342 is about 37957.4807119756. The cubic root of 1440770342 is about 1129.4445653093. Note that the first 3 decimals are identical.

Subtracting 1440770342 from its reverse (2430770441), we obtain a palindrome (990000099).

The spelling of 1440770342 in words is "one billion, four hundred forty million, seven hundred seventy thousand, three hundred forty-two".