1400670 has 48 divisors (see below), whose sum is σ = 3706560. Its totient is φ = 366912.

The previous prime is 1400669. The next prime is 1400687. The reversal of 1400670 is 760041.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7012 + ... + 7208.

It is an arithmetic number, because the mean of its divisors is an integer number (77220).

2^1400670 is an apocalyptic number.

1400670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1853280).

1400670 is an abundant number, since it is smaller than the sum of its proper divisors (2305890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1400670 is a wasteful number, since it uses less digits than its factorization.

1400670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1400670 is about 1183.4990494293. The cubic root of 1400670 is about 111.8867371142.

1400670 divided by its sum of digits (18) gives a triangular number (77815 = T₃₉₄).

The spelling of 1400670 in words is "one million, four hundred thousand, six hundred seventy".