1400749 has 16 divisors (see below), whose sum is σ = 1728000. Its totient is φ = 1108224.

The previous prime is 1400747. The next prime is 1400753. The reversal of 1400749 is 9470041.

It is a cyclic number.

It is not a de Polignac number, because 1400749 - 2¹ = 1400747 is a prime.

It is a super-2 number, since 2×1400749² = 3924195522002, 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 (1400747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9327 + ... + 9475.

It is an arithmetic number, because the mean of its divisors is an integer number (108000).

2^1400749 is an apocalyptic number.

It is an amenable number.

1400749 is a deficient number, since it is larger than the sum of its proper divisors (327251).

1400749 is a wasteful number, since it uses less digits than its factorization.

1400749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1400749 is about 1183.5324245664. The cubic root of 1400749 is about 111.8888406043. Note that the first 4 decimals are identical.

The spelling of 1400749 in words is "one million, four hundred thousand, seven hundred forty-nine".