1340526542 has 8 divisors (see below), whose sum is σ = 2018049816. Its totient is φ = 667843272.

The previous prime is 1340526533. The next prime is 1340526599. The reversal of 1340526542 is 2456250431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1340526542² = 3594022819612955528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1340526499 and 1340526508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1209308 + ... + 1210415.

It is an arithmetic number, because the mean of its divisors is an integer number (252256227).

Almost surely, 2^1340526542 is an apocalyptic number.

1340526542 is a deficient number, since it is larger than the sum of its proper divisors (677523274).

1340526542 is a wasteful number, since it uses less digits than its factorization.

1340526542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2420002.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 1340526542 is about 36613.2017447259. The cubic root of 1340526542 is about 1102.6181552127.

Adding to 1340526542 its reverse (2456250431), we get a palindrome (3796776973).

The spelling of 1340526542 in words is "one billion, three hundred forty million, five hundred twenty-six thousand, five hundred forty-two".