1031400442 has 16 divisors (see below), whose sum is σ = 1601068032. Its totient is φ = 497795760.

The previous prime is 1031400347. The next prime is 1031400481. The reversal of 1031400442 is 2440041301.

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, 3663 + ... + 45565.

It is an arithmetic number, because the mean of its divisors is an integer number (100066752).

Almost surely, 2^1031400442 is an apocalyptic number.

1031400442 is a deficient number, since it is larger than the sum of its proper divisors (569667590).

1031400442 is a wasteful number, since it uses less digits than its factorization.

1031400442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42333.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1031400442 is about 32115.4237400038. The cubic root of 1031400442 is about 1010.3591318359.

Adding to 1031400442 its reverse (2440041301), we get a palindrome (3471441743).

The spelling of 1031400442 in words is "one billion, thirty-one million, four hundred thousand, four hundred forty-two".