1400000378 has 16 divisors (see below), whose sum is σ = 2401416384. Its totient is φ = 599646240.

The previous prime is 1400000369. The next prime is 1400000383. The reversal of 1400000378 is 8730000041.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4163 + ... + 53078.

It is an arithmetic number, because the mean of its divisors is an integer number (150088524).

Almost surely, 2^1400000378 is an apocalyptic number.

1400000378 is a deficient number, since it is larger than the sum of its proper divisors (1001416006).

1400000378 is a wasteful number, since it uses less digits than its factorization.

1400000378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58997.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1400000378 is about 37416.5789189765. The cubic root of 1400000378 is about 1118.6890427634.

The spelling of 1400000378 in words is "one billion, four hundred million, three hundred seventy-eight", and thus it is an aban number.