1400003649 has 32 divisors (see below), whose sum is σ = 2264764800. Its totient is φ = 847687680.

The previous prime is 1400003641. The next prime is 1400003651. The reversal of 1400003649 is 9463000041.

1400003649 is a `hidden beast` number, since 14 + 0 + 0 + 0 + 0 + 3 + 649 = 666.

It is not a de Polignac number, because 1400003649 - 2³ = 1400003641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1400003641) 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, 519297 + ... + 521985.

It is an arithmetic number, because the mean of its divisors is an integer number (70773900).

Almost surely, 2^1400003649 is an apocalyptic number.

It is an amenable number.

1400003649 is a deficient number, since it is larger than the sum of its proper divisors (864761151).

1400003649 is a wasteful number, since it uses less digits than its factorization.

1400003649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4462 (or 4456 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1400003649 is about 37416.6226295212. The cubic root of 1400003649 is about 1118.6899140082.

The spelling of 1400003649 in words is "one billion, four hundred million, three thousand, six hundred forty-nine".