142440363 has 20 divisors (see below), whose sum is σ = 229150768. Its totient is φ = 87654960.

The previous prime is 142440349. The next prime is 142440421. The reversal of 142440363 is 363044241.

It is not a de Polignac number, because 142440363 - 2⁸ = 142440107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142440323) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 66583 + ... + 68688.

Almost surely, 2^142440363 is an apocalyptic number.

142440363 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

142440363 is a deficient number, since it is larger than the sum of its proper divisors (86710405).

142440363 is a wasteful number, since it uses less digits than its factorization.

142440363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135296 (or 135287 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 142440363 is about 11934.8382058577. The cubic root of 142440363 is about 522.2490884138.

The spelling of 142440363 in words is "one hundred forty-two million, four hundred forty thousand, three hundred sixty-three".