340749551 has 8 divisors (see below), whose sum is σ = 354313344. Its totient is φ = 327346560.

The previous prime is 340749527. The next prime is 340749559. The reversal of 340749551 is 155947043.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340749551 is a prime.

It is a super-2 number, since 2×340749551² = 232220513013403202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340749559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35870 + ... + 44363.

It is an arithmetic number, because the mean of its divisors is an integer number (44289168).

Almost surely, 2^340749551 is an apocalyptic number.

340749551 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

340749551 is a deficient number, since it is larger than the sum of its proper divisors (13563793).

340749551 is a wasteful number, since it uses less digits than its factorization.

340749551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80401.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 340749551 is about 18459.4027801552. The cubic root of 340749551 is about 698.4657218995.

The spelling of 340749551 in words is "three hundred forty million, seven hundred forty-nine thousand, five hundred fifty-one".