30049761 has 32 divisors (see below), whose sum is σ = 49690368. Its totient is φ = 15759360.

The previous prime is 30049739. The next prime is 30049807. The reversal of 30049761 is 16794003.

It is a happy number.

It is not a de Polignac number, because 30049761 - 2⁵ = 30049729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30049711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13611 + ... + 15663.

It is an arithmetic number, because the mean of its divisors is an integer number (1552824).

Almost surely, 2^30049761 is an apocalyptic number.

It is an amenable number.

30049761 is a deficient number, since it is larger than the sum of its proper divisors (19640607).

30049761 is a wasteful number, since it uses less digits than its factorization.

30049761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 30049761 is about 5481.7662299664. The cubic root of 30049761 is about 310.8949545805.

The spelling of 30049761 in words is "thirty million, forty-nine thousand, seven hundred sixty-one".