1340250142 has 32 divisors (see below), whose sum is σ = 2516500224. Its totient is φ = 520080000.

The previous prime is 1340250133. The next prime is 1340250161. The reversal of 1340250142 is 2410520431.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21318 + ... + 55990.

It is an arithmetic number, because the mean of its divisors is an integer number (78640632).

Almost surely, 2^1340250142 is an apocalyptic number.

1340250142 is a deficient number, since it is larger than the sum of its proper divisors (1176250082).

1340250142 is a wasteful number, since it uses less digits than its factorization.

1340250142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34944.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1340250142 is about 36609.4269553622. The cubic root of 1340250142 is about 1102.5423679263.

Adding to 1340250142 its reverse (2410520431), we get a palindrome (3750770573).

The spelling of 1340250142 in words is "one billion, three hundred forty million, two hundred fifty thousand, one hundred forty-two".